I am looking at a series of ordinal indep variables
individually while adjusting for background factors
with logistic regression. I am entering these
varaibles as continuous as opposed to dummy coding.
I want to use AFLOGIT for attributable fractions. I
am not sure how this works with a continuous indep
variable however. My vars are coded from 1-4 or 1-5.
1 in each case is the lowest category. The AF
instructions state to make the reference cat your non
exposure category, so I have used 1. Is the result
the AF for all other categories vs. 1 in that case?
That's not what I want. But with so few categories, I
can't just take the middle value either. If it isn't
just 1 vs. all others, then my results should be fine.
Any help is appreciated.
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